Improvement in elevators



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i@ ww 5mm gianna @tina JOSIAH Ej'gI-IOLLISTER, OF CALAIS, VERMONT.

l Letters Patent No. 84,744, dated December 8, 1868. I

mPRovEMENT 1N ELnvAToRs.

The Schedule referred to in these Letters Patent and making part-of the'same.

To all whom tit may concern:

Be it known that I, J osmn E. HoLnIsTnn, of Calais, inthe countyofWashington, and State of Vermont', have invented certain new anduseful Improvements in Elevators, of which the following is a full,clear, and exe-ct description, reference being had to the accompanyingdrawings, making part of this specification, in which- This inventionrelates to .new and improved ele.4

vator, designed for hoisting hay and grain in -oa rns, and its principalnovelty consists in the peculiar construction of the brakein thegroove-.d and ratchet-rim pulley, and in the combination and arrangementof the -two latter, and in other parts of the apparatus. Y

The object of this invention is to retain the raised load, weight, orsubstance, when once elevated to any desired height, until it can bemoved, by moving the carriage, car, or frame, arranged on an elevatedtrack, to any place of deposit beneath.

' In the present instancefthe track C is secured to a cross-beam, D,between two rafters F, and to hangers B, depending from the rafters',but any other supporting-device may be used, and in any other locality.

The grooved wheels a of a car, E, run on the-tops of a track, C, so asto move the car, in either direction, the whole length of the track.

A ear, on an elevated track, is no new'device, and I make no claim toits use alone, but what 1 have invented are the brake A and the pulleyG, both constrncted, combined, and arranged to operate together,

as hereafter more fully described. Other parts of the apparatus,combined with the first above named, are; also considered as part of myinvention.

Between'the sides b of the car, a pulley, G, rotates on suitablebearings, and this pulley is grooved, as

shown, to receive the hoisting-rope (or chain) c.

The brake A is pivoted at t' to the sides of the car, anda spring, el,secured to the bottom of the former, holds the extended or hook-end ofthe brake upward, with its upper end in vContact with the ratcheted edgeor rim of the pulley, and with the hoisting-rope e passing over thesame.

The extended end of the brake has a hook-end, N, by which to anchor thecar when hoisting a load, said hook-end engaging with a plate, e, orother suitable device, arranged for that purpose.

From one side of the Vbrake a rod, j, projects, as shown, and this rodpasses through a slot, g, in the side of the car, and outward over thetrack G.

An adjustable and movable tripping-cam, h, is applied to said track bymeans of a set screw, n, which holds said cam, when set in any place onthe track or rail.

To the rear end of the car a draw-rope,H, is attached, which passesthrrnigh an eye, lt, and downward, as shown.

From the extended end ci' tue brake a tripping-rope, I, depends, bywhich to liberate the hook from the plate e, so as to move the car byhauling 011 the rope H.

One end of the hoisting-rope e is fastened to the brake directly underthe fulcrum or pivoted-br-:arings t'. This hoisting-rope passes, fromthe point first named, around, downward, and through an ordinarytackleblock, J; thence upward, between the upper end of the brake, at 4,and the groove in the pulley, andover the latter, and back to and overawheel, K; thence downward, and under a pulley, L,"if desired to use ahorse for lloisting. the end of thejbrake at 4 being fitted to the rope,so as to gripe it, and hold thelcad'when'elevated to any height.

A hook depends from the lower end of the tackleblock, by which to hookinto the weight M o r load to be elevated.

In practice,l the caris anchored, as'. shown in g. 1, the load orsubstance secured to the hook of the tackleblock, power applied to thehoisting-rope, and the load raised to the desired height. If only a partof the full height, the car is liberated by hauling on the tripping-"rope I to release the hook frolnthe platee, but if the loadis raised tothe full height, the top projection 3, on the tackle-block, comesagainst the under side of the Ybrake, at or near the edge of the pulleyG, and

raises the upper end of the former, and releases the hook from the platee, 'and allows the car to run back on the rails C to deposit the loadwhere'desired.

This depositing or lowering the load is effected by hauling on thenipping-rope I, orhby setting the cam in the shaft or rail in the rightplace to raise the rod f and the upper end of the brake, when the car ismoved back, all as clearly shown in igs. 2 and-3.

ually slackened, and the spring (l throws the extended` end of the brakenpward,landlthe upper end into contact with the rope, binding or gripingthe latter between'the brake and the pulley, and holding the load in itselevated position, to be moved by moving the car, at the same time thecatch or pawl-portion l?, forming a part of the upper end of the brake,engages the ratchet-rim of the pulley, and not only prevents it turningback, but also prevents excessive jamming or abrasion ofthehoisting-rope between the .pulley and the upper end of the brake.

When the load has been deposited, the car is run forward, and anchored,as before, and ready for hoist-l ing another load.

This improved elevator -Inay be used for other purposes than hoistinghay or grain. It may b'e employed for moving heavy freight from onerailroad-car to another, or for loading or unloading freight in or aboutfreight-houses or store-houses, or for moving sun-dried bricks to thekiln, and for various other purposes.

.What I claim, and desire to secure by Letters Patent, isl

1. Combining the brake A and the pulley G with the car, as and for thepurpose specified.

2. The hoisting-rope c and tackle-block J, in oombination with the brakeA and pulley G, for the purpose and substantially as described.

3. The tripping-rope I, applied to the hook-end N of the brake, as andfor the purpose specified.

4. The 'draw-rope H, in combination with the car E and eye k, as and forthe purpose specified.

5. The adjustable-and movable cam'h, constructed as described, andapplied to the rail C', for the purpose `and substantially'as described.

6. The rod f, in combination with the brake A and the cam h, for thepurpose and substantially as described. Y

7. The plate e or holding-device, in combination with the hook-end ofthe brake A, for the purpose and substantially as described.

8. The combination of all the operative parts specilied, when arrangedto operate substantially' assand for the purposes set forth.

, VVit-nesses: JOSIAH E. HOLLISTER.

A. J. SIBLEY, CHS. SIBLEY.

